Demand Flashcards
Define demand:
The quantity of a good or service that consumers are willing and able to buy at any given price over a given time period
What is a contraction in demand
Where price increases so quantity demanded decreases
What is an extension in demand
Where price decreases so quantity demanded increases
Define: PED
A measure of the responsiveness of quantity demanded of a good following a change in price
PED equation
% change in QD / % change in P
Percentage change calculation
% change = ((New - Original) / Original) x 100
PED is always ___________
Negative
If PED is greater than 1 then it is considered ____________
Elastic
If PED is smaller than 1 then it is considered ____________
Inelastic
What does elastic mean
Elastic means that consumers respond a lot to a change in price
What does inelastic mean
Inelastic means that consumers respond less to a change in price
PED of 1 =
Unitary Price Elasticity
What does unitary price elasticity mean
That price and quantity change the same amount
Elastic demand curve is ___________
Horizontal
Inelastic demand curve is ___________
Verticle